Bottom groove assembly of crossheading crusher with replaceable middle plate assembly
By designing a bottom trough structure with replaceable middle plate components, the problem of easy wear of the crusher bottom trough was solved, achieving efficient equipment maintenance and production continuity, and reducing maintenance costs.
Patent Information
- Application Number
- CN202422996079.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-05
AI Technical Summary
During use, components such as the middle plate and wing plates below the hammer shaft assembly of existing underground crushers in coal mines are prone to deformation and wear, resulting in frequent replacement of the entire bottom trough, which affects production continuity and is costly.
Design a bottom groove assembly with a replaceable middle plate assembly, including a middle plate, side plates and limiting plates, connected by a pin assembly, allowing the middle plate assembly to be replaced independently while retaining other parts of the bottom groove, and enhancing impact resistance and wear resistance.
This enables independent replacement of the middle plate assembly, reducing the overall replacement frequency, improving equipment lifespan and production continuity, and lowering maintenance costs.
Smart Images
Figure CN223587266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coal mine underground transport equipment, more specifically, relates to a replaceable middle plate assembly's crossheading crusher bottom groove subassembly. BACKGROUND
[0002] The crusher is a crucial link in the fully mechanized coal mining equipment, on the one hand, it crushes and transports large pieces of coal and gangue, preventing large pieces of coal from damaging the belt, on the other hand, it participates in connecting the front and rear chutes of the transfer machine, playing a role of connecting the upper and lower parts.
[0003] The bottom groove is a key component of the crusher and is the carrier of the crusher components such as the crossheading crusher main frame and the crushing frame. The bottom groove of the crusher used in the coal mine at present has a hammer shaft assembly installed above it. The hammer shaft assembly is driven by a motor and rotates at high speed in a certain direction. The impact force generated by the rotation crushes large pieces of coal and gangue, and at the same time, it also generates a great impact force on the bottom groove below the hammer shaft assembly. In addition, the scraper chain of the transfer machine also passes through this place at high speed. Therefore, the bottom groove below the hammer shaft assembly is subjected to a great force and is often deformed and worn out, which will be scrapped in a short time and needs to be frequently replaced and repaired by the coal mine. However, the bottom groove of the crusher used in the coal mine at present is integrally welded, which is time-consuming and laborious to replace and needs to be replaced as a whole, which destroys the continuity of the production of the coal mine and cannot guarantee the economic benefits. Therefore, the traditional bottom groove of the crusher cannot meet the use requirements of the mine. SUMMARY
[0004] In order to overcome the deficiencies in the prior art, a replaceable middle plate assembly's crossheading crusher bottom groove subassembly is provided to solve the problem that the middle plate, wing plate, etc. below the hammer shaft assembly of the existing crossheading crusher integral bottom groove are severely deformed and worn out after a period of use, the bottom groove needs to be repaired as a whole, and it needs to be replaced frequently when it is seriously damaged.
[0005] In order to solve the above technical problems, the utility model adopts the technical scheme that:
[0006] A replaceable middle plate assembly's crossheading crusher bottom groove subassembly, comprising a bottom groove, two convex end heads are symmetrically welded at the outlet end of the bottom groove, and two concave end heads are symmetrically welded at the inlet end of the bottom groove; characterized in that: it further comprises a middle plate assembly, a front middle plate, a front side plate and a front wing plate are fixedly connected at the outlet end of the bottom groove, a rear middle plate, a rear side plate and a rear wing plate are fixedly connected at the inlet end of the bottom groove, a side plate assembly is fixedly connected between the front side plate and the rear side plate, and the middle plate assembly is inserted in the side plate assembly;
[0007] The middle plate assembly comprises a middle plate, the two ends of the middle plate are respectively connected with front middle plates or rear middle plates, side plates are respectively fixedly connected to the two sides of the middle plate, limit plates are fixedly welded to the outer sides of each side plate, and limit openings for limiting the lengthwise movement of the limit plates are arranged on the inner sides of the side plate assemblies;
[0008] A positioning pin hole is arranged on the side plate assembly, a long circular pin hole is arranged on the side plate and is matched with the positioning pin hole, the long circular pin hole is arranged transversely and is connected with the positioning pin hole through a pin shaft assembly.
[0009] Preferably, the middle plate assembly comprises two symmetrically arranged middle plates, one end of the two middle plates is connected, the thickness of the other end of the two middle plates away from each other is the same as that of the front middle plate or the rear middle plate, and the thickness of the other end of the two middle plates close to each other is greater than that of the front middle plate or the rear middle plate.
[0010] The other end of the two middle plates away from each other is provided with a thickness transition section.
[0011] Preferably, two limit openings are arranged on each side of the side plate assembly, and the two limit openings are matched with the limit plates of the corresponding middle plates.
[0012] Preferably, positioning pins are arranged on the two sides of the positioning pin hole, the pin shaft assembly comprises a connecting plate and a pin fixedly connected, the pin is inserted into the positioning pin hole, the connecting plate is provided with a through hole matched with the positioning pin, and the outer end of the positioning pin is inserted into a limit pin.
[0013] Preferably, the heights of the two ends of the side plate are flush with the heights of the front side plate and the rear side plate.
[0014] Wing plates are welded to the inner sides of the side plates, and the heights of the two ends of the wing plates are flush with the heights of the front wing plate and the rear wing plate.
[0015] Preferably, the length of the middle plate assembly is 1 / 2 of the length of the bottom groove.
[0016] Preferably, the side plate connected with each middle plate is provided with four left-right symmetrical long circular pin holes.
[0017] The utility model has the beneficial effects compared with the prior art:
[0018] 1、The middle plate assembly in the utility model is connected with the bottom groove through the limit plate and the pin shaft assembly, when the middle plate assembly is seriously worn or damaged, only the middle plate assembly needs to be replaced, the remaining part of the bottom groove is reserved, the whole bottom groove does not need to be replaced, it is safe, stable, reliable, convenient to disassemble and assemble, and is favorable to saving cost.
[0019] 2、The middle plate assembly adopts a separate structure, so that the middle plate can be provided with a relatively thick size, the impact resistance and wear resistance of the middle plate are improved, and the replacement frequency is reduced. DRAWINGS
[0020] The specific embodiments of the present application will be further described in detail with the accompanying drawings.
[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0022] Figure 2 It is a schematic diagram of the overall structure of the present application;
[0023] Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall structure of the present application;
[0024] Figure 4 It is a schematic diagram of the overall structure of the present application;
[0025] Figure 5 It is a schematic diagram of the overall structure of the present application;
[0026] Figure 6 It is a schematic diagram of the overall structure of the present application; Figure 5 It is a schematic diagram of the overall structure of the present application;
[0027] Figure 7 It is a schematic diagram of the overall structure of the present application; Figure 5 It is a schematic diagram of the overall structure of the present application;
[0028] Figure 8 It is a schematic diagram of the overall structure of the present application;
[0029] Figure 9 It is a schematic diagram of the overall structure of the present application;
[0030] Figure 10 It is a schematic diagram of the overall structure of the present application;
[0031] Figure 11 It is a schematic diagram of the overall structure of the present application; Figure 9 It is a schematic diagram of the overall structure of the present application;
[0032] Figure 12 It is a schematic diagram of the overall structure of the present application.
[0033] In the figure: 1 - bottom groove, 101 - front middle plate, 102 - front side plate, 103 - front wing plate, 104 - rear middle plate, 105 - rear side plate, 106 - rear wing plate, 107 - side plate assembly, 108 - limiting opening, 109 - positioning pin hole, 110 - positioning pin, 2 - convex end, 3 - concave end, 4 - middle plate assembly, 41 - middle plate, 42 - side plate, 43 - limiting plate, 44 - long circular pin hole, 45 - thickness transition section, 46 - wing plate, 5 - pin shaft assembly, 51 - connecting plate, 52 - pin. DETAILED DESCRIPTION
[0034] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0035] As shown in the drawings, the utility model discloses a changeable middle plate assembly's trough crusher bottom groove assembly, including the bottom groove 1, the outlet end of bottom groove 1 is symmetrically welded with two pieces of convex end 2, and the convex end 2 is used for connecting with the bottom end of the transfer machine groove, and the inlet end of bottom groove 1 is symmetrically welded with two pieces of concave end 3, and the concave end 3 is used for connecting with the bottom end of the transfer machine chute. Figures 1 to 12 The outlet end of bottom groove 1 is provided with fixedly connected front middle plate 101, front side plate 102 and front wing plate 103, specifically, the front middle plate 101 is welded between the two convex ends 2, the front wing plate 103 is arranged on the upper end of the front side plate 102, and the front wing plate 103 and the front side plate 102 are welded with the convex end 2, and the inlet end of bottom groove 1 is provided with fixedly connected rear middle plate 104, rear side plate 105 and rear wing plate 106, specifically, the rear middle plate 104 is welded between the two concave ends 3, the rear wing plate 106 is arranged on the upper end of the rear side plate 105, and the rear wing plate 106 and the rear side plate 105 are welded with the concave end 3.
[0036] The front side plate 102 and the rear side plate 105 are fixedly connected with the side plate assembly 107, and the front side plate 102, the side plate assembly 107 and the rear side plate 105 jointly form the side plate of the bottom groove assembly.
[0037] The middle plate assembly 4 includes a middle plate 41, and the two ends of the middle plate 41 are respectively connected with the front middle plate 101 or the rear middle plate 104, and the two sides of the middle plate 41 are fixedly connected with side plates 42, and the outer side of each side plate 42 is fixedly welded with a limiting plate 43, and the inner side of the side plate assembly 107 is provided with a limiting opening 108, and the limiting plate 43 is inserted into the limiting opening 108 from the upper end of the limiting opening 108, and the limiting plate 43 is limited to move along the length direction through the limiting opening 108, and the length direction is the same as the material conveying direction of the bottom groove.
[0038] The side plate assembly 107 is provided with a positioning pin hole 109, and the side plate 42 is provided with an oblong pin hole 44 matched with the positioning pin hole 109, and the oblong pin hole 44 is transversely arranged, and the vertical movement of the side plate 42 is limited by penetrating the positioning pin hole 109 and the oblong pin hole 44 with a pin shaft assembly 5.
[0039]
[0040] The pin shaft assembly 5 preferably comprises a fixedly connected connecting plate 51 and a pin 52, the pin 52 is inserted into the positioning pin hole 109, the connecting plate 51 is provided with a through hole 53, and the two sides of the positioning pin hole 109 are provided with positioning pins 110, when the pin shaft assembly 5 is inserted into the positioning pin hole 109, the through hole 53 is matched with the positioning pins 110, and the outer ends of the positioning pins 110 are inserted into limiting pins to prevent the connecting plate 51 from being separated from the positioning pins 110.
[0041] Preferably, the length of the middle plate assembly 4 is 1 / 2 of the length of the bottom groove 1.
[0042] In order to facilitate installation and replacement, the middle plate assembly 4 preferably comprises two symmetrically arranged middle plates 41, one end of the two middle plates 41 is abutted, and the thickness of the other end of the two middle plates 41 away from each other is the same as that of the front middle plate 101 or the rear middle plate 104. That is, the thickness of the end of the middle plate 41 abutting with the front middle plate 101 is the same as that of the front middle plate 101, and the thickness of the end of the middle plate 41 abutting with the rear middle plate 104 is the same as that of the rear middle plate 104. The thickness of the end of the two middle plates 41 close to each other is greater than that of the front middle plate 101 or the rear middle plate 104, and the other end of the two middle plates 41 away from each other is provided with a thickness transition section 45. By increasing the thickness of the middle plate 4, the impact and wear resistance of the middle plate 4 can be improved.
[0043] The side plate assembly 107 is provided with two limiting openings 108 on each side, and the two limiting openings 108 are matched with the limiting plates 43 of the two middle plates 41 respectively. The side plate 42 connected with each middle plate 41 is provided with four left-right symmetrical long round pin holes 44.
[0044] The heights of the two ends of the side plate 42 are flush with the heights of the front side plate 102 and the rear side plate 105 respectively, and the inner side of the side plate 42 is welded with a wing plate 46, and the heights of the two ends of the wing plate 46 are flush with the heights of the front wing plate 103 and the rear wing plate 106 respectively.
[0045] The above only describes the preferred embodiments of the present application in detail, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application, and various changes should be included in the protection scope of the present application.
Claims
1. An exchangeable middle plate assembly for an under-pan assembly of an entry chute crusher, characterized by: The utility model provides a kind of bottom groove (1), the outlet end of bottom groove (1) is symmetrically welded with two convex end heads (2), and the inlet end of bottom groove (1) is symmetrically welded with two concave end heads (3);It is characterized by further comprising middle plate assembly (4), the outlet end of bottom groove (1) is provided with fixedly connected front middle plate (101), front side plate (102) and front wing plate (103), the inlet end of bottom groove (1) is provided with fixedly connected rear middle plate (104), rear side plate (105) and rear wing plate (106), front side plate (102) and rear side plate (105) are fixedly connected with side plate assembly (107) between, middle plate assembly (4) is inserted in side plate assembly (107); The middle plate assembly (4) includes a middle plate (41), the two ends of the middle plate (41) are respectively connected with the front middle plate (101) or the rear middle plate (104), and the two sides of the middle plate (41) are respectively fixedly connected with side plates (42). The outer side of each side plate (42) is fixedly welded with a limiting plate (43), and the inner side of the side plate assembly (107) is provided with a limiting opening (108) for limiting the movement of the limiting plate (43) in the length direction. The side plate assembly (107) is provided with a positioning pin hole (109), and the side plate (42) is provided with an oblong pin hole (44) matched with the positioning pin hole (109). The oblong pin hole (44) is transversely arranged and connected with the positioning pin hole (109) through a pin shaft assembly (5).
2. An exchangeable pan assembly for an order chute of a pan mill according to claim 1, characterized in that: The middle plate assembly (4) includes two symmetrically arranged middle plates (41). One end of the two middle plates (41) is connected, and the thickness of the other end of the two middle plates (41) away from each other is the same as the thickness of the front middle plate (101) or the rear middle plate (104). The thickness of the end of the two middle plates (41) close to each other is greater than the thickness of the front middle plate (101) or the rear middle plate (104). The end of the two middle plates (41) away from each other is provided with a thickness transition section (45).
3. An undercasing assembly for a changeable middle casing assembly's pit crusher according to claim 2, characterized in that: Each side of the side plate assembly (107) is provided with two limiting openings (108), and the two limiting openings (108) are respectively matched with the limiting plate (43) of the corresponding middle plate (41).
4. An undercasing assembly for a changeable middle casing assembly's pit crusher according to claim 1, characterized in that: Both sides of the positioning pin hole (109) are provided with a positioning pin (110), and the pin shaft assembly (5) includes a connecting plate (51) and a pin (52) fixedly connected. The pin (52) is inserted into the positioning pin hole (109), and the connecting plate (51) is provided with a via hole (53) matched with the positioning pin (110). The outer end of the positioning pin (110) is inserted into a limiting pin.
5. An exchangeable pan assembly for an entry chute of a pan mill according to claim 1, characterized in that: The height of the two ends of the side plate (42) is respectively flush with the height of the front side plate (102) and the rear side plate (105). The inner side of the side plate (42) is welded with a wing plate (46), and the height of the two ends of the wing plate (46) is respectively flush with the height of the front wing plate (103) and the rear wing plate (106).
6. An undercasing assembly for a changeable middle casing assembly's pit crusher according to claim 1, characterized in that: The length of the middle plate assembly (4) is 1 / 2 of the length of the bottom groove (1).
7. An undercasing assembly for a changeable middle casing assembly's pit crusher according to claim 2, characterized in that: Each side plate (42) connected to each middle plate (41) is provided with four left-right symmetrical oblong pin holes (44).